National Instruments NI USB-9234 - Manual (Page 16)

NI USB-9234 User Guide and Specifications 16 ni.com
Specifications
The following specifications are typical for the range 0 to 60 °C unless
otherwise noted.
Input Characteristics
Number of channels................................4 analog input channels
ADC resolution.......................................24 bits
Type of ADC ..........................................Delta-Sigma
(with analog prefiltering)
Sampling mode .......................................Simultaneous
Type of TEDS supported ........................IEEE.1451.4 TEDS Class I
(interface)
Internal master timebase (f
M
)
Frequency ........................................13.1072 MHz
Accuracy..........................................±50 ppm max
Data rate range (f
s
) using internal master timebase
Minimum .........................................1.652 kS/s
Maximum ........................................51.2 kS/s
Data rate range (f
s
) using external master timebase
Minimum .........................................0.391 kS/s
Maximum ........................................52.734 kS/s
Data rates (f
s
) .......................................... , n = 1, 2, …, 31
Input coupling.........................................AC/DC (software-selectable)
AC cutoff frequency
–3 dB ...............................................0.5 Hz typ
–0.1 dB ............................................4.6 Hz max
f
M
256 ÷
n
--------------------